Shovel



J. P. WALTER Oct. 9, 1928.

SHOVEL Filed Nov. 10, 1926 3 Sheets-Sheet I l Jail P 14 525? INVENTORATTORNEY WITNESS:

J. P. WALTER Oct. 9, 1928.

SHOVEL Filed Nov. 1 1926 3 Sheets-Sheet 2 John VP M a/liar NvE T R ATTOR N EY WITNESS:

Oct. 9, 1928. 1,686,888

J. P. WALTER SHOVEL Filed NOV- 1926 3 Sheets-Sheet 3 70717? INVENIORATTORNEY WITNESS:

Patented Get. 9, 1928.

UN! STATES JOHN P. WALTER, OF ALLENTOWN, PENNSYLVANIA.

SHOVEL.

Application filed November 10, 1926. Serial No. 147,482.

This invention relateswhich is mainly designed for handling coal inmines but which, of con 1*, (an be used for handling other material, thegeneral object of the invention being to so form the device that it canbe used in restricted areas and in places where the head room islimited.

Another object of the invention is to provide means whereby tht shovelwill cut mate rial from a hank or pile and deliver it to a transferplate which will in turn deliver the material to a ronvevor, with means011 the app 1, the transfer plate and the conveyor as well as to causethe entire apparatus to travel alon a surface.

A further object of the invcn n is to irovide a cutting device at oneside oi, the shovel for cutting a straight wall at th s side of theapparatus.

Another object of the invention is to provide a rail with double flangedwheels on the apparatus for engaging the rail to keep the apparatustraveling in a strai ht line.

This invention also cons uction and in the combination and arrain centof the se eral parts, to be hereinafter fully des r bed. illus 'itcd inthe accompanying drawi. s and specifically pointed out in the appendedclaims.

In deecribing my invention in det. care will be had i-to the awon'ipanyirawings wherein like characters denote like or corresponding part:throughout the several views,

which Figure l a plan view of the device.

l igure 2 is in elevation thereof.

Figure 3 a side view of the opposite side from that shown ir Figure 2.

Figure 4C is a front view.

Figure 5 is section on line 5 ure 1.

Figures 6, 7 and 8 are diagrammatic views showing the various positionsof the rotary shovel and transfer plate during the operation of thedevice.

In these drawings 1 indicates the frame of the machine which at one sidethereof is pro vided with the double flanged wheels 2 whi h are designedto run on the single rail track 3, the rest of the machine being soformed that it can slide over the surface upon which is traveling. Thedouble flanged wheels, engaging the single rail, will cause the machineto travel in a straight line and prevent it from slewing around. Ofcourse, both sides of the machine may be provided with wheels, if deto apower shovel features c f cons l, referand m sired, and the wheels maybe so constructed that the device can travel on a track or they may beso made that the device need not be used with a track.

A rotary shovel 4 is arranged at the front of the machine and the saidshovel comprises a hollow shaft 5 journaled in the frame and having adisk 6 at each end thereof and also having secured thereto the endspiders 7, which are arranged adjacent the disk and the central spider8. A pair of plates 9 is secured to the spiders, the plates beingsecured to opposite sides of the spiders and extending in oppositedirections with their outer portions curved to form the scoops 10, thesescoop portions being provided with the teeth 11. Thus it will be seenthat as the shovel rotates, the scoops wi ll engage material in front ofthe apparatus and separate some of it from the pile or bank and carry itupwardly and then toss it to the rear of the shovel where it will fallupon a tilting or transfer plate 12 which has its rear end fastened to ashaft 13 which is journaled in the frame. This plate, it is tiltedupwardly, will discharge the material thereon upon a transverselyextending conveyor 14 which will deliver the material to a point at oneside of the apparatus. This COHVQyOF includes the endless belt 15 andthe rollers 16 and 16 over which the belt passes, the ournals for thepintles of the shaft 16 being adjustable to take up slack in the belt,as shown at 17.

A shaft 18 is rotatably mounted in the hollow shaft 5 of the shovel anda cutter wheel 19 is connected to the right hand end of the said shaft18, this wheel having the bits 20 on its periphery. A plow or mold board21 is arranged at the opposite end of the rotary shovel for throwingmaterial in front of the rotary shovel, this mold board being carried bya forwardly extending part 1 of the frame 1, which also carries thefront wheel 2.

A. motor 22 is supported on the frame, this motor being shown as anelectric one but it will, of course. be understood that it can be of anydesired type. The shaft 23 of the motor is connected by the worm gearing24 with a shaft journaled in the frame 1 and this shaft 25 is connectedby the beveled gears 26 with a shaft 27 which has fastened thereto thesprockets 28 and 29. A chain 30 passes over the sprocket 28 and over asprocket 31 which is connected with the hollow shaft 5 of the rotaryshovel so that the shovel is rotated when the shaft 27 is rotated fromthe motor and a chain 32 passes over the sprocket 29 and over a sprocket33 which is connected with the shaft 18 of the cutting wheel 19.

A shaft 34 is connected with the shaft 27 by the gears 35 and the saidshaft 34 has a crank 36 at one end thereof which is connected by theconnecting rod 3? with a crank 38 on the shaft 13 of the transfer plateso that said plate is tilted by the rocking movement of the shaft 13through the rotary movement of the shaft 34 which is transmitted to theshaft 13 through the cranks and connecting rod. A shaft 39 is journalodin the apparatus and has a gear 46 thereon which meshes with the gear 35on the shaft 34 and the said shaft 39 is connected to a pintle of theroller 16 of the conveying means by means of the beveled gears 41.

A clutch 42 is placed on the shaft 27 for connecting its gear 26 withthe said shaft and the said clutch is operated from the rear of themachine through the shaft 4?; and the handle 44. Thus the rotary shovel,cat ter wheel, the transfer plate and the conveyor can be disconnecteofrom the motor by moving the clutch to inoperative potion, but when theclutch is in operative position, tire rotary shovel and the cutter diskwill be rotated, the transfer plate tilted and the cor.- veyor operatedfrom the motor.

It will be seen that the cutter disk is entirely independent of therotary shovel so that it can be driven at a different speed than thatof'the shovel, the speed of the shovel and of the cutter disk beingregulated by the sizes of the sprockets used for driving these parts. Itwill also be understood that where two scoops are used on the shovel,the material will be delivered to the transfer plate twice during eachrevolution of ti e shovel, so that it l be necessary to operate theplate twice for each revolution of thrshovel so that it will dischargethe material received from one scoop upon the conveyor and then returnto normal position to recel e the material from the second scoop andthen discharge this and return to normal position to receive thematerial from the first scoop.

Any desired means may be used for propelling the apparatus. The drawingsshow a large sprocket. 45 and a small sprocket 4'8 on a shaft 47 whichis driven from the shaft 25 through the we m gearing 48, clutch means 49being provided for connecting the spro kets with the shaft. A chain 50is adapted to be placed in engagement with either sprocket 45 or 46according to the speed at which the apparatus to be moved, it being seenthat the sprocket 46 is smaller than the sprocket 45 so that theapparatus would be moved at a slower speed if the chain is placed in thespr cket 46 instead of the sprocket 45. The chain passes over the idlesprockets 51 or and has its ends connected with anchor posts so that thechain is held stationary and as the 41' rotates, it will rotate thesprocket ha NHZSC the apparatus to move along 111 o c direction or theother accordo tire direction of rotation of the motor. a drum can besubstituted for s and a cable substituted for the til in t 1 clutch 54and this drum can be used for iving a cable for handling and othermaterial and it can also be a power cal; drum.

oin it will be seen that 101' one chain or cab e has been anchored cadand in tl rear of the apparatus and the motor starts up and the clutches42 and ii) H10". ed to operative position, the machine ill forwardly onthe rail and into i to be loaded. As th shovel lupted to be connectedwith \fill pick up the material and de .011 the tilting plate whichoperates as the shovel, if the shovel i tvai scops and the said platethe material upon the conveyor which conveys it to one side of the apararus where t can be deposited upon cars or other vehicles or it can bedeposited upon a second conveyor which will carry it to the rear of themachine. The shovel can be prov.:ded with but one scoop, if desired.Figures (2 and o show the manner in which the er plate operate to carryit the conveyor without the interfering with the movement of the cutterdisk will operate to dress one renal side of the device. The plow I handside acts to throw the ma- 1 L'oiit of the st ihis apparatus is mainlydesigned for use in coal mines where head room is limited. As is wellknown, the usual practice in such mines to make an undercut in the wallof Lhe coal. vein, after which holes are drilled near the roof of thevein to receive the powder so that the coal above the undercut is shotdown. This usually leaves an arch which starts at the inner end of theundercut and extends to the roof of the vein, leaving a mass of materialoverhanging the undercut. This must be dressed straight before anotherout can be made. At this point the machine is brought into operation,the rotary shovel acting to tear down the overhanging mass of material,with the rotary disk cutter leaving a straight wall or face at the righthand side of the vein.

What I claim is l. A power shovel comprising a frame, a rotary shovel atthe front end of the frame, a conveyor, a rocking plate for transferringthe material from the shovel to the conveyor and a power device foroperating said conveyor and the rocking plate, said power device drivinga shaft connected by one train of gearing to the rotary cutter and byanother train to the rocking plate.

2. A power shovel comprising a frame, a rotary shovel at the front endof the frame, a conveyor, a rocking plate for transferring the materialfrom the shovel to the conveyor, a cutter disk at one side of the framefor leaving a straight wall of material at this side of the apparatusand a power device for operating the conveyor, the rocking plate and thecutter disk, said power device driving a shaft connected by one train ofgearing to the rotary cutter and by another train to the rocking plate.

3. A power shovel comprising a frame, a rotary shovel at the frontthereof, a conveyor, a tiltable transfer plate for receiving thematerial from the shovel and delivering it to the conveyor, a verticallyarranged cutter disk at one side of the frame, and power means foroperating said parts, such means including means for rotating the cutterdisk at a different speed from that of the rotary shovel.

4. A power shovel comprising a frame, a rotary shovel at the frontthereof, a conveyor, a tiltahle transfer plate for receiving thematerial from the shovel and delivering it to the conveyor, verticallyarranged cutter disk at one side of the frame, power means for operatingsaid parts, such means including means for rotating the cutter disk at adifferent speed from that of the rotary shovel and means for propellingthe apparatus from the power means.

A, power shovel comprising a frame, a rotary shovel at the frontthereof, a conveyor, a tiitablc transfer plate for receiving thematerial from the shovel and delivering it to the conveyor, a verticallyarranged cutter disk at one side of the frame, power means for operatingsaid parts, such means including means for rotating the cutter disk at adifferent speed from that of the rotary shovel, means for propelling theapparatus from the power means, a single rail track and wheels at oneside of the frame engaging the track.

6. A power shovel comprising a frame, a rotary shovel at the front endthereof, said shovel comprising a hollow shaft and scoops thereon, ashaft ournaled in the hollow shaft and having its ends projectingtherefrom, a cutter disk connected with one projecting end, a tiltabletransfer plate for receiving material from the rotary shovel, a.conveyor for receiving material from the transfer plate, a power deviceon the frame and means for communicating the movement thereof to thevarious parts, such means including means for driving the hollow shaftat a different speed from the shaft which carries the cutter disk.

7. A power shovel comprising a frame, a rotary shovel at the frontthereof, said shovel including a hollow shaft and scoops connected withthe shaft, a second shaft passing through the hollow shaft, a cutterdisk connected with one end of the said second shaft, a tiltabletransfer plate, a rock shaft carrying the same, a conveyor, said platereceiving the material from the rotary shovel and depositing it upon theconveyor, a motor, a shaft driven from the same, a sprocket and chainfor connecting the said last mentioned shaft with the hollow shaft, achain and sprockets connecting the driven shaft to the shaft whichcarries the cutter disk, a crank shaft, gears connecting the same withthe driven shaft, a crank on the rock shaft, a connecting bar connectingsaid crank with the crank of the crank shaft, means for operating theconveyor from the crank shaft and a plow at that side of the frame whichis opposite to that on which the cutter disk is arranged for throwingmaterial in front of the rotary shovel and means for propelling theapparatus from the motor.

Intestimony whereof I afiix my signature.

JOHN P. WALTER.

